LT1080 Advanced Low Power 5V RS232 Dual Driver/Receiver

The LT®1080/LT1081 are the only dual RS232 driver/receiver with charge pump to guarantee absolutely no latchup. These interface optimized devices provide a realistic balance between CMOS levels of power dissipation and real world requirements for ruggedness. The driver outputs are fully protected against overload and can be shorted to ±30V. Unlike CMOS, the advanced architecture of the LT1080/LT1081 does not load the signal line when “shut down” or when power is off. Both the receiver and RS232 outputs are put into a high impedance state. An advanced output stage allows driving higher capacitive loads at higher speeds with exceptional ruggedness against ESD.

For applications requiring up to five drivers and five receivers with charge pump in one package see the LT1130A Series data sheet. A version of the LT1080/LT1081, the LT1180A and LT1181A that use only 0.1µF capacitors, is also available. All of linear Technology’s RS232 ICs are available in standard surface mount packages

产品特点 Features
  • Superior to CMOS Improved Speed: -Operates over 120kBaud-Improved Protection: Outputs Can Be Forced to ±30V
  • Absolutely No Latchup
  • CMOS Comparable Low Power: 60mW
  • Can Power Additional RS232 Drivers: 10mA
  • Supply Current in Shutdown: 1µA
  • Available in SO Package
  • Available with or without Shutdown
参数
LT1080 参数
应用
  • Portable Computers
  • Battery-Powered RS232 Systems
  • Power Supply Generator
  • Terminals
  • Modems
典型应用图
LT1080 典型应用
LT1080 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LT1080CN PDIP 18 C $3.75 $3.05
LT1080CN#PBF PDIP 18 C $3.75 $3.05
LT1080CSW SO 18 C $4.00 $3.25
LT1080CSW#PBF SO 18 C $4.00 $3.25
LT1080CSW#TR SO 18 C $3.35
LT1080CSW#TRPBF SO 18 C $3.35
LT1080IN PDIP 18 I $5.08 $4.10
LT1080IN#PBF PDIP 18 I $5.08 $4.10
LT1080ISW SO 18 I $6.08 $4.95
LT1080ISW#PBF SO 18 I $6.08 $4.95
LT1080ISW#TR SO 18 I $5.05
LT1080ISW#TRPBF SO 18 I $5.05
LT1080MJ/883 CERDIP 18 M
LT1080 数据手册及相关资料下载
  1. 数据手册 (英文) : LT1080 - Advanced Low Power 5V RS232 Dual Driver/Receiver.PDF
  2. 设计要点 (英文) : DN14 - Extending the Applications of 5V Powered RS232 Transceivers.PDF
  3. 设计要点 (英文) : DN27 - Design Considerations for RS-232 Interfaces.PDF
  4. 设计要点 (英文) : DN30 - RS232 Transceiver with Automatic Power Shutdown Control.PDF
  5. 设计要点 (英文) : DN4 - New Developments in RS232 Interfaces.PDF
  6. 可靠性数据 : R001 Reliability Data .PDF
  7. 产品选型卡 : LTM2882 - Isolated RS232 + 1W Power.PDF
  8. 产品选型卡 : RS232 Quick Guide.PDF